is my memory running at the correct frequency??

[buachille]

hi,

i recently upgraded my machine.

i'm not too up on memory and stuff so could do with some advice.

i have a EVGA nForce 680 (Socket 775) PCI-Express DDR2 Motherboard with this ram Corsair 2GB DDR2 XMS2-6400C4 TwinX (2x1GB).

the ram is currently running at 400mhz but i have a feeling it should be set higher than this.

can someone tell me if this is right or not please.

i have pasted full results from cpuz below.

CPU-Z 1.38 report file
Processor(s)
Number of processors 1
Number of cores 4 per processor
Number of threads 4 (max 4) per processor
Name Intel Core 2 Extreme QX6700
Code Name Kentsfield
Specification Intel(R) Core(TM)2 Quad CPU @ 2.66GHz
Package Socket 775 LGA
Family/Model/Stepping 6.F.7
Extended Family/Model 6.F
Core Stepping B3
Technology 65 nm
Core Speed 2666.5 MHz
Multiplier x Bus speed 10.0 x 266.7 MHz
Rated Bus speed 1066.6 MHz
Stock frequency 2666 MHz
Instruction sets MMX, SSE, SSE2, SSE3, SSSE3, EM64T
L1 Data cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
L1 Instruction cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
L2 cache 2 x 4096 KBytes, 16-way set associative, 64-byte line size
Chipset & Memory
Northbridge NVIDIA 680i SLI SPP rev. A2
Southbridge NVIDIA 680i SLI MCP rev. A2
Graphic Interface PCI-Express
PCI-E Link Width x16
PCI-E Max Link Width x16
Memory Type DDR2
Memory Size 2048 MBytes
Memory Frequency 400.0 MHz (2:3)
CAS# Latency (tCL) 5.0 clocks
RAS# to CAS# (tRDC) 5 clocks
RAS# Precharge (tRP) 5 clocks
Cycle Time (tRAS) 18 clocks
Bank Cycle Time (tRC) 22 clocks
Command Rate 2T
System
System Manufacturer EVGA
System Name 122-CK-NF68
System S/N 1
Mainboard Vendor EVGA
Mainboard Model 122-CK-NF68
BIOS Vendor Phoenix Technologies, LTD
BIOS Version 6.00 PG
BIOS Date 12/21/2006
Memory SPD
Module 1 DDR2, PC2-6400 (400 MHz), 1024 MBytes, Corsair
Module 2 DDR2, PC2-6400 (400 MHz), 1024 MBytes, Corsair
Software
Windows Version Microsoft Windows XP Professional Service Pack 2 (Build 2600)
DirectX Version 9.0c

 

[buachille]

I think its running at the right speed PC6400 runs at 400Mhz (800Mhz effective speed).

i heard about it running at 800mhz and that is why i was unsure.

does the 2 in ddr2 mean it runs at twice the speed? must do.

thanks for the reply.

 

[buachille]

Nope its the D in DDR that means it runs at twice the speed just like it does in DDR1.

so much to learn and so little time to learn it

 

[buachille]

change your memory to below and give it 2.2 volts

CAS# Latency (tCL) 4 clocks
RAS# to CAS# (tRDC) 4 clocks
RAS# Precharge (tRP) 4 clocks
Cycle Time (tRAS) 12 clocks

is that a big overclock or will my memory be perfectly safe at those settings?